cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A139361 Primes A080478(n)^2 + A080478(n+1)^2.

Original entry on oeis.org

5, 13, 73, 233, 569, 929, 1429, 1861, 2897, 4337, 7877, 11717, 12641, 14321, 17137, 19417, 21017, 21841, 24481, 27617, 29537, 32537, 35117, 37277, 38921, 41801, 44701, 47149, 49613, 52189, 56809, 59513, 61613, 65173, 74293, 82013, 94109
Offset: 1

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Author

Zak Seidov, Apr 15 2008

Keywords

Comments

The construction of A080478 requires that certain numbers "k^2 + a(n-1)^2" be prime - the present sequence lists these primes. - N. J. A. Sloane, Jun 24 2012
All primes are of the form 4m+1, corresponding m's 1, 3, 18, 58, 142, 232, 357, 465, 724 in A139362.

Links

Crossrefs

Cf. A080478, A139362.
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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